// File:Student.cpp
// Student Class Definition

#include "Student.h"
#include <iostream>
#include <fstream>
#include <string> // Need for strcpy
#include <iomanip>// Need for setw in cout

using namespace std;

// Need this to uppercase a string
string strUpper(string s)
{	string result="";
	for (int i=0;i<s.size();i++)
		result+=toupper(s.at(i));
	return(result);
}

 // Default Constructor folded into one arg constr using default args (see .h)
/* Student::Student()
 {strcpy(Name,"");
  Hours=Points=0;
 }
*/
 // Constructor with argument
 Student::Student(string StudentName,int hours,int points)
 {Name=StudentName;
  Hours=hours;
  Points=points;
 }

 // Initialize Name of Student
 void Student::SetName(string StudentName)
 {Name=StudentName;}

 // Update the class with a class record (#Hours,Grade in class 0..4)
 // void Student::AddClass(int CourseHours,char Grade)
 Student Student::operator+=(CourseData Info)
 {Hours+=Info.Hours;
  if (Info.Grade!='F')
   Points+=('E'-toupper(Info.Grade))*Info.Hours;
  return(*this);
 }

 // Change a Grade (#Hours, Previous Grade, New Grade)
 void Student::ChangeGrade(int CourseHours,char OldGrade,char NewGrade)
 {Points+=(toupper(OldGrade)-toupper(NewGrade))*CourseHours;}

 // Remove a class from student's record (Hours, Grade)
 // void Student::RemoveClass(int CourseHours,char Grade)
 Student Student::operator-=(CourseData Info)
 {Hours-=Info.Hours;
  if (Info.Grade!='F')
   Points-=('E'-toupper(Info.Grade))*Info.Hours;
  return(*this);
 }

 // Get Hours Completed
 int Student::HoursCompleted() const
 {return(Hours);}

 bool operator<(Student S1,Student S2)
 {return(S1.Name<S2.Name);}
	
 bool operator>(Student S1,Student S2)
 {return(S1.Name>S2.Name);}

 bool operator==(Student S1,Student S2)
 {return(S1.Name==S2.Name);}

 bool operator<(Student S1,string Name)
 {return(strUpper(S1.Name)<strUpper(Name));}
	
 bool operator>(Student S1,string Name)
 {return(strUpper(S1.Name)>strUpper(Name));}

 bool operator==(Student S1,string Name)
 {return(strUpper(S1.Name)==strUpper(Name));}
 
 bool operator<<=(Student S1,Student S2)
 {return(S1.ComputeGPA()<S2.ComputeGPA());}

 bool operator>>=(Student S1,Student S2)
 {return(S1.ComputeGPA()>S2.ComputeGPA());}


 // Print Student Info
 //void Student::PrintStudentInfo()
 std::ostream &operator<<(std::ostream &Dest,Student S)
 {Dest.setf(ios::showpoint);
  Dest.precision(2);
  Dest <<  setiosflags(ios::left) << setw(20) << S.Name << resetiosflags(ios::left);
  Dest << setw(4) << S.Hours << setw(10) << S.ComputeGPA() << endl;
  return(Dest);
 }

 std::istream &operator>>(std::istream &source,Student &S)
 {cout << "Enter name >";
  getline(source,S.Name);
  cout << "Enter transfer hours, 0 if none >";
  source >> S.Hours;
  if (S.Hours>0) {
	  cout << "Enter Points Transferred >";
	  source >> S.Points;
  }
  source.ignore(80,'\n');
  return(source);
 }

 ifstream &operator>>(ifstream &source,Student &S)
 {getline(source,S.Name);
  source >> S.Hours >> S.Points;
  source.ignore(80,'\n');
  return(source);
 }


 // Get Student's GPA
 float Student::ComputeGPA() const
 {if (Hours>0)
   return(float(Points)/Hours);
  return(0);
 }